Study Aid

Memory & Focus







Life Style

About Us

Contact Us



L-theanine has a significant effect on the release or reduction of neurotransmitters like dopamine and serotonin, resulting in improved memory and learning ability. L-theanine may also influence emotions due to its effects on the increased release of dopamine. L-theanine reduces brain serotonin concentration by either curtailing serotonin synthesis or increasing degradation in the brain. Juneja LR, Chu D-C, Okubo T, et al. L-theanine a unique amino acid of green tea and its relaxation effect in humans. Trends Food Sci Tech 1999; 10:199-204.

In a study done in 1999 at the University of Shizuoka in Japan, several other unique properties of L-theanine were found. The research demonstrated that in addition to facilitating relaxation, L-theanine may benefit learning performance, mental clarity, concentration, and immunity.

Theanine administration caused significant increases in serotonin and/or dopamine concentrations in the brain, especially in striatum, hypothalamus and hippocampus. School of Food and Nutritional Sciences, The University of Shizuoka, Yada, Shizuoka, Japan.

Research on human volunteers has demonstrated that L-theanine creates a sense of relaxation in approximately 30-40 minutes after ingestion via at least two different mechanisms. First, this amino acid directly stimulates the production of alpha brain waves, creating a state of deep relaxation and mental alertness similar to what is achieved through meditation. Second, L-theanine is involved in the formation of the inhibitory neurotransmitter, gamma amino butyric acid (GABA). GABA influences the levels of two other neurotransmitters, dopamine and serotonin, producing the key relaxation effect.Mason R. 200 mg of Zen; L-theanine boosts alpha waves, promotes alert relaxation. Alternative & Complementary Therapies 2001,April; 7:91-95

L-theanine is an amino acid that research has proven to induce relaxation without causing drowsiness.Found predominantly in tea plants, L-theanine contributes to the unique flavor and umami taste of green tea. Studies show that when consumed, L-theanine directly stimulates the production of alpha brain waves. These brain waves are associated with an awake, yet relaxed, state in humans. L-theanine also plays a role in the formation of gamma amino butyric acid (GABA). This inhibitory neurotransmitter is key for relaxation and works by inhibiting the release of dopamine and serotonin. In addition to relaxation, L-theanine exhibits the potential to lower blood pressure and to improve learning ability and memory. Research by Taiyo International / Nutrasolutions

A review study on L-theanine in Trends in Food Science and Technology in 1999 confirmed how L-theanine works. The study reported that the brain absorbs L-theanine within 30 minutes and that higher doses increase alpha wave production and relaxation.

In a placebo-controlled study in the journal Bioscience, Biotechnology, and Biochemistry in 1998, researchers found that rats who ate L-theanine produced 26 percent more tryptophan than rats who ate the placebo. The animals who ate L-theanine also exhibited less anxious behavior than those who didn't.

Brain Tonic's all natural ingredients contribute to a better quality of life.

The manufacturer, distributers and marketers do not accept any responsibility for the accuracy of the information or the consequences arising from the application, use, or misuse of any of the information contained herein, including any injury and/or damage to any person or property as a matter of product liability, negligence, or otherwise. No warranty, expressed or implied, is made in regard to the contents of this material. No claims or endorsements are made for any drugs or compounds currently marketed or in investigative use. This material is not intended as a guide to self-medication. The reader is advised to discuss the information provided here with a doctor, pharmacist, nurse, or other authorized healthcare practitioner and to check product information (including package inserts) regarding dosage, precautions, warnings, interactions, and contraindications before administering any drug, herb, or supplement discussed herein. Our products are manufactured in Johannesburg, South Africa, at a certified GMP laboratory. GMP stands for Good Manufacturing Practice. It is a recognised standard of quality for pharmaceutical and supplement manufacture and is enforced through regular governement inspections, controls and checks. COA certifies our ingredients. This stands for Certificate of Analysis and is a recognised world wide industry standard for quality of pharmaceutical and supplement ingredients.

© 2012 Smart Supplements

Site design by: